Tim Clifford Books

Energy
Energy

By Tim Clifford

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Geology
Geology

By Tim Clifford

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Space
Space

By Tim Clifford

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American Coins and Bills
American Coins and Bills

By Tim Clifford

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Paying Without Money
Paying Without Money

By Tim Clifford

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Money Through the Ages
Money Through the Ages

By Tim Clifford

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Related Articles from our Blog

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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